.elevator-door-root {
  display: flex;
  justify-content: center;
  height: 84px;
  width: 84px;
  border: 1px solid #000;
}

.elevator-door-root .center-line {
  height: 84px;
  width: 1px;
  background-color: #000;
}

.elevator-door-root .opened {
  height: 84px;
  width: 40px;
  background-color: #ccc;
  border-left: 1px solid #000;
  border-right: 1px solid #000;

}